← Mixed trick challenge lesson New set →

Maths Tricks Practice Worksheet

Maths tricks trick 15: Mixed trick challenge · Set 209 · 40 questions
TalentJR

The trick (Choose a trick): × 9 → finger trick; × 4 → double double; × 10, 100, 1000 → slide and add zeros. 37, 12345679 or 111… → magic patterns; reverse and subtract → 1089. Puzzles: find the rule, the total or the leftover days, then check your answer.

NameDateTime takenScore ___ / 40
  1. 1.9 × 8 =
  2. 2.What comes next? 2, 4, 8, 16, ? (a) 33 (b) 32 (c) 28 (d) 24
  3. 3.111111 × 111111 =
  4. 4.Take 61 and take away the sum of its digits. What do you get?
  5. 5.9 × 10 = 9? — what is the missing digit?
  6. 6.9 × 9 = 8? — what is the missing digit?
  7. 7.Think of 3. Multiply it by 3, then add 3. What number do you end with?
  8. 8.1 × 9 =
  9. 9.1 + 3 + 5 + … + 17 =
  10. 10.A piggy bank has 6 coins of ₹5 and 11 coins of ₹2. How many rupees are in it?
  11. 11.What comes next? 4, 9, 16, 25, ? (a) 34 (b) 37 (c) 38 (d) 36
  12. 12.Magic square (every row, column and diagonal has the same total): 32 11 ? | 17 23 29 | 20 35 14. What is the missing number?
  13. 13.1 + 2 + 3 + … + 75 =
  14. 14.Magic square (every row, column and diagonal has the same total): 9 8 13 | ? 10 6 | 7 12 11. What is the missing number?
  15. 15.Odd one out: which number is NOT in the 5 times table? (a) 25 (b) 39 (c) 20 (d) 30
  16. 16.Half of 22 =
  17. 17.12345 × 8 + 5 =
  18. 18.9 × 10 =
  19. 19.I thought of a number, multiplied it by 4 and added 4. I got 60. What was my number?
  20. 20.Magic square (every row, column and diagonal has the same total): 10 5 6 | 3 ? 11 | 8 9 4. What is the missing number?
  21. 21.53 × 4 =
  22. 22.Magic trick! Think of 11. Double it, add 16, halve it, then take away 11. What number do you get?
  23. 23.I thought of a number, multiplied it by 4 and added 4. I got 48. What was my number?
  24. 24.Odd one out: which number is NOT in the 7 times table? (a) 35 (b) 28 (c) 42 (d) 53
  25. 25.Magic square (every row, column and diagonal has the same total): 26 11 14 | 5 17 29 | ? 23 8. What is the missing number?
  26. 26.Double 43 =
  27. 27.What comes next? 1, 2, 4, 8, ? (a) 12 (b) 14 (c) 17 (d) 16
  28. 28.41 × 1000 =
  29. 29.752? is in the 9 times table. One digit is hidden, and it is not 0. What is the hidden digit?
  30. 30.Think of 2. Multiply it by 3, then add 9. What number do you end with?
  31. 31.What comes next? 4, 8, 16, 32, ? (a) 56 (b) 65 (c) 64 (d) 48
  32. 32.If today is Monday, what day will it be after 91 days? (a) Tuesday (b) Thursday (c) Monday (d) Sunday
  33. 33.5 × 9 =
  34. 34.If today is Thursday, what day was it 8 days ago? (a) Tuesday (b) Thursday (c) Wednesday (d) Saturday
  35. 35.1 + 3 + 5 + … + 31 =
  36. 36.Magic square (every row, column and diagonal has the same total): 4 11 6 | 9 7 ? | 8 3 10. What is the missing number?
  37. 37.12 × ? = 1200
  38. 38.Take 66 and take away the sum of its digits. What do you get?
  39. 39.Magic trick! Think of 13. Double it, add 14, halve it, then take away 13. What number do you get?
  40. 40.31 × 4 =

Answer key

  1. 72
  2. 32
  3. 12345654321
  4. 54
  5. 0
  6. 1
  7. 12
  8. 9
  9. 81
  10. 52
  11. 36
  12. 26
  13. 2850
  14. 14
  15. 39
  16. 11
  17. 98765
  18. 90
  19. 14
  20. 7
  21. 212
  22. 8
  23. 11
  24. 53
  25. 20
  26. 86
  27. 16
  28. 41000
  29. 4
  30. 15
  31. 64
  32. Monday
  33. 45
  34. Wednesday
  35. 256
  36. 5
  37. 100
  38. 54
  39. 7
  40. 124

Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks